Double-acting jacquard-machine.



No. '65l,57 l. A. E. KE-LMEL.

DOUBLE ACTING JAGQUARDV MACHINE.

Patented June l2, I900.

(Application filed. mm 24, 1898.)

3 Sheets-Sheet I.

(No Model.)

|I IFIFIL 1 Witnesses Inventor.-

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Patented lune l2, I900.

A. E. KELMEL. DOUBLE ACTING JACOUARD MACHINE.

(Application filed. June 24, 1898.)

3 Shee ts-Sheet 3.

(No Model.)

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- versa for the next pick, and so on.

NITED STATES UFFIQEQ PATENT I ALBERT E. KELMEL, OF PROVIDENCE, RI-IODE ISLAND, ASSIGNOR TO THE OROMPTON dz KNOWVLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS.

DOUBLE-ACTING JACQUARD-MAGHINE.

SPECIFICATION forming part of Letters Patent No. 651,571, dated June 12, 1900.

Application filed J' 11110 24, 1898.

To all whom it may concern.-

Be it known that I, ALBERT E. KELM L, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in'Double-Action J acquard-Machines, of which the following is .a specification, reference being had therein to the accompanying drawings.

The invention relates more particularly to what are known as double action or double-acting jacquard-machines. In certain forms of machines of this class there is employed for each neck and tail cord a double hook or hooked upright, and the machine has two moving griffs working alternately and both intended to engage with the said double hook or hooked upright, but not both at the same time, the one griif ascending while the other is descending for one pick, and vice In consequence of the fact that the double upright has two griff-hooks, one for engagement with each moving griif, it follows that when one grid is descending, carrying with it an upright which previously was raised,but Whichshould occupy a lowered position in the next shed formation, the disengaged hook on said up-' right projects into the path of movement of the ascending grifl", and hence the latter will engage with the said hook of the descending upright unless such engagement is provided against and by arresting the descent of such upright and carrying it into an upper position make a false indication and cause a mispick. The first object of the present invention is to provide a means of preventing undesired engagement of a descending upright by the ascending grift which shall obviate the necessity of making a second or extra beat of the card cylinder or prism for the same purpose. Where it is undertaken to prevent improper engagement ofa descending upright by the ascending griff at the time when the two griffs are passing eachother by causing an additional movement of the card cylinder or prism to present again to the needles the same card which was last presented thereto, a slowing down of the operation of the loom below the speed that otherwise would be attainable is necessitated, since such ad- .Serial No. 684,339. (No model.)

ditional movement; of the card cylinder or prism renders it necessary to occasion two complete beats or movements of the cylinder or prism for each pick of the loom. For instance, if it were desired to run a loom at the rate of one hundred and fifty picks'per minute the card cylinder or prismwould be re quired to make three hundred beats against the needles per minute. By obviating the necessity of making the second or extra beat of the card cylinder orprism for the purpose of preventing improper engagement of the ascending griff with the descending upright and by providing devices to press back the descending uprights out of reach of the ascending griff it is made possible to run a loom having a double-action j acquard-machine applied thereto at a higher rate of speed than heretofore has been known to be possible.

The invention consists in the novel features and combinations, which I will now proceed to describe with reference to the accompanying drawings,in which latter I have illustrated the best embodiment of my invention that I have yet contrived. The distinguishing and characteristic features of the invention are particularly pointed out and distinctly defined in the claims at the close of this specification.

Figure 1 of the drawings shows in side elevation certain portions of a double-action jacquard machine having one embodiment of my invention appliedtheret-o, only such old parts being shown as are necessary to make clear the relations and mode of operation of my invention. Fig. 2 is a view in transverse vertical section of the parts which are represented in Fig. 1. Fig. 3 is a View in similar section, showing some of the parts which are 0 shown in Fig. 2,but representing them in different positions. Fig. 4 is a sectional view showing a modification.

The framing and certain'fixed parts which are applied thereto are designated 1 1, the usual bottom board being designated 2,3the double hooks or uprights being designated 3 3, the usual needles cooperating with said uprights being designated 4 4, the springs which are applied to the said needles being desig- 10o 7 and 8 respectively designate the two moving grid-frames, the blades applied to the said grid-frames being designated, respectively, 71 and 81 and being arranged in alternating succession, as shown. The two griffframes 7 and S are shown as mounted, respectively, on the slide-rods 9 10, as usual, the said slide-rods being fitted to move in guides 11 on the fixed framework of the machine, all as usual, and the griff-frames being in practice actuated through suitable power connections, (not necessary to be shown or described herein,)and thereby being caused to move simultaneouslyin opposite directions with respect to each other.

The card cylinder or prism 6 in practice will be supported and operated by devices of usual character and construction, (not herein shown,) and thereby will be caused to make one heat for each shed formation, this usually corresponding with one pick of the loom to which the jacquard-machine is applied. The uprights 3 3 are double, as shown, each limb of each of such uprights having a hook, as 31. One limb of each upright is designed for cooperation with a grid-blade 71, and the other limb thereof is designed for cooperation with the adjacent grift-blade 81, one of such grid-blades being designed to be uplifted for one shed and the other thereof being designed to be uplifted for the succeeding shed, and

so on in regular alternation.

12 12 designate the blades of a stationary grid such as sometimes is employed-that is to say, in full-open-shed j acquard-machineswhen itis desired that an upraised upright shall remain in its elevated position for several picks in succession Without being caused to descend meanwhile.

32 32 designate books that are formed on the uprights 3 3 for engagement with the said griff-blades 12 12.

The devices which have been described thus 7 far are common to preexisting jacquard-machines.

With the foregoing devices I combine certain novel features whereby as each of the moving griffs in turn descends after having been elevated the disengaged hooks of the pose of preventing the ascending griff from picking up a descending upright and raising it at a time when it should be lowered into a depressed position. I secure the desired result by providing the respective double uprights with bent portions, forming cams which act in connection with wires or equivalent bearings relatively to which the double uprights move as they ascend and descend in unison with the griffs. The said cams are shaped properly to cause a backward movement or recession of the hooked parts of the uprights relatively to the blades of the griffs at the times when two sets of blades are passing each other, which are the times at which the ascending griff is likely to pick up a descending upright and carry it again into an elevated position. The cams in question may be variously formed, and the wires or other bearings may be variously constructed, contrived, arranged, and supported.

In Figs. 1, 2, and 3 of the drawings I have shown an embodiment of the invention in which each limb of each double upright is bent and returned upon itself adjacent to the free upper extremity thereof, thereby providing each limb with parallel portions 38 38, as shown most clearly in Figs. 2 and 3. Between the said parallel portions of each limb is received a wire, as 13, the series of wires 13 13 being mounted suitably-as, for instance, in a support 14, which is applied to the fixed framework. The said wires 13 13 are all disposed in the same horizontal plane, and the parallel portions of all the limbs of'all the uprights are bent alike and in the same directionthat is to say, so as to project over the grifE-blades-in order that in the descent of a given upright with the grid which at a given moment is descending the action of the cam-shaped portions of the said upright in connection with the corresponding wires 13 or other bearings may bear or bend the limbs of the said upright baokwardly with relation to the particular griff-blades which are intended to coact with such hooks. (See Fig. 3.) This bending of the said limbs will'not operate to disengage from the descending griff the hook which hangs on a blade of such griff, but it will carry out of the path of the adjacent ascending grift-blade the disengaged hook of such upright, as indicated in Fig. 3. The said disengaged hook will be maintained out of reach of the said ascending grift-blade during the time that the grilf-blades of the respective griiis are passing each other.

In order to support the uprights in their lowest position, the wires 13 13 are arranged to become engaged by the shoulders 38 38, that are formed at the extreme upper ends of the uprights by bending the limbs of the uprights back upon themselves, as aforesaid. Thus, as shown at the left in Fig. 3, when occupying their lowest position the uprights hang suspended from wires 13 13.

Fig. 4 illustrates a modification in which the limbs of the uprights 3 3 are not returned upon themselves so as to form parallel portions, as in Figs. 1, 2, and 3.

In Fig. 4 each limb of each upright fits between two wires 131 131, the Working being substantially the same as in the case of the construction which is represented in Figs. 1, 2, and 3.

In Fig. at the extremities of the limbs of the uprights are shown formed with hooks 381 to engage wires 131 131 in the lowest position of the uprights.

I claim as my invention" double upright having the respective limbs 1. The combination with the griffs moving thereof bent or returned upon themselves at oppositely with relation to each other, of the their upper ends to form parallel portions, double upright having the respective limbs cam-shaped as described, and the wire or bear- 5 thereof provided with cams and with the hooks ing coacting with the cam-shaped parallel 20 or shoulders, substantially as described, and portions of each limb to keep the disengaged the Wires or bearings coacting with such cams, hook of such upright as the latter descends to keep the disengaged hook of such upright out of engagement with the ascending griff. as the latter descends out of engagement with In testimony whereof I affix my signature m the ascending griff and also serving when enin presence of two Witnesses.

gaged by said hooks or shoulders to support the uprights in the lowest position of the ALBERT KELMEL latter. Witnesses 2. The combination with the griffs moving WILLIAM G. ANTHONY, I 5 oppositely With relation to each other, of the EMMA NIsBIT. 

